... I wont stick up for either side. However, sounds to me like you bought something sight unseen perhaps. That would be your bad. You should always know EXACTLY what you are getting before purchasing. I dont know if you saw pics or not. If he just said "complete" linkage... then maybe thats what he felt is a complete linkage. Now... to get to the situation at hand. I dont see how this is that big of deal to fix. you can use that peice from just about any mid 70's v8 dodge truck with minor modifications. That or any good shop can make something that will work just fine. Its not really rocket science. So there are options avail if you cant get your hands on the real peice you need. Just letting ya know. Hope you get it all figured.
-RPM